(Contents information excerpted from The Internet Speculative Fiction Database)
Art:
- Green Thumb by Virgil Finlay
- Hidden Talent by Virgil Finlay
- Brainchild by Paul Orban
- A Case of Sunburn by Ed Emshwiller
- Filthy Rich by Paul Orban
- The Maze by Ed Emshwiller
- Operation Boomerang by Ed Emshwiller
Essays:
- Editor's Report (If, April 1957) by James L. Quinn
- What Is Your Science I. Q.? (If, April 1957) by uncredited
- Science Briefs (If, April 1957) by uncredited
- Hue and Cry (If, April 1957) by uncredited
Novelettes:
- Hidden Talent by Robert Silverberg
- Brainchild by Henry Slesar
Short Stories:
- Green Thumb by James E. Gunn
- A Case of Sunburn by Charles L. Fontenay
- Filthy Rich by Fred Sheinbaum
- The Maze by A. Bertram Chandler
- Operation Boomerang by George Revelle